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Chapter 3 – Gatekeeper Functionality

Multi-Tech Systems, Inc. MultiVOIP Gatekeeper User Guide 27

Chapter 3 – Gatekeeper Functionality

This chapter describes how to configure and manage the Gatekeeper software. With Gatekeeper functionality,

network managers can define and control the flow of H.323 voice traffic across the IP network. In this chapter, we

will present both a general description of how Gatekeepers work and very specific information on how MultiTech’s

Gatekeeper unit operates. In cases where the actual Gatekeeper functionality implemented in the current

software release differs from theoretically possible Gatekeeper functionality, the differences will be noted (i.e., we

describe some Gatekeeper functionality that will only become available in a later software release and note all

such cases).

A Gatekeeper unit controls a “zone” on the IP network. (In fact, that is how a H.323 zone is defined; as the set of

endpoints controlled by a Gatekeeper.) One Gatekeeper unit is needed to control a single zone.

Network managers can configure, monitor, and manage the activity of registered network endpoints. They can set

policies and control bandwidth usage, thus customizing their network for better advantage. Gatekeeper facilitates

interoperability between PBX dial plans and IP-based terminals. With it, call centers can route calls on the basis of

need and implement other automatic call distribution features, as well.

Getting Started

Gatekeeper units require configuration of their Gatekeeper parameters before they can control a group of voip

gateways.

Gatekeepers can be configured to enact a wide range of functionality, but they are primarily node points that

direct and manage traffic to other endpoints. The essential question of “whose messages go where?” can be

answered either by a Gatekeeper that acts as a coordinating node or clearinghouse for the system or by

phonebooks coordinated among the set of peer endpoints (gateways) that make up the system.

In its role as a node point, the Gatekeeper directs call traffic between pairs of endpoints engaged in the call. To

facilitate this node-point control, all endpoints (voip gateways) must be registered with the Gatekeeper. This

registration is done in the

Gatekeeper | Existing Endpoints screen.

The basic function of directing calls to specified endpoints is done differently in Gatekeeper-controlled systems

than in systems controlled only by phonebooks. Phonebooks use “destination patterns” like area codes and local

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Table des matières

Television

Contents

Installation

Location

Brightness

Equalizer

MoveOOOOOSkip

Kong/South

Europe/China/Africa/CIS)

(USA/Korea/Philippines)

ProgrammeOedit

Programme

Selecting

(option)

ChildOlock

S-VIDEO VIDEO

S-VIDEO VIDEO L/MONO

Troubleshooting

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